Your body’s progress, seen clearly.
Track your body measurements and take progress photos that always line up. Compare honestly, whether you are gaining or losing.
Features
What Silueta does for you
Simple tools to measure, photograph and compare, at your own pace.
Measure only what matters to you
Weight, waist, biceps, neck… Enable the parts you want, reorder them and create your own. One value per part and day, editable.
Ghost camera
A previous photo is overlaid on the camera preview with adjustable opacity so you repeat exactly the same framing. That is what makes comparisons honest.
Compare view
Two photos side by side with a slider, or stacked with opacity. Progress shows even when the scale does not move. Export an animated timelapse.
Neutral goals
Every goal can aim at gaining or losing: bulking, cutting, rehab. The app never assumes what you want.
Charts and report
Moving averages, ranges from 30 days to all time, and a PDF report with measurements, goals, meal journal and photos for your nutritionist or trainer.
Private by default
No account, no cloud. Backup to a file you control, optional fingerprint lock and cm/kg or in/lb units without data loss.
Privacy
Your body, your data.
Silueta works without an account and keeps everything on your phone.
Read the privacy policy- Everything is stored on the device: measurements, photos, goals and meal journal.
- No account, no ads, no analytics. We store nothing about you on our servers.
- AI meal advice is an optional subscription. Only when you ask for it, and after you agree, is that meal (its text and, if you allow it, its photo) sent to our server and to Anthropic to be analysed. Our server keeps no copy.
- Backups are a zip file you export when and where you want.
Support
Questions and answers
Can’t find the answer? Write to support@diodelogic.com and mention the app name and your device.
Do I need an account?
No. Silueta works without an account or a connection. Everything is stored on your phone.
Do my photos leave my phone?
Progress photos never do, unless you share them, include them in a PDF report or export them in a backup. They are stored in the app’s private folder. The photo of a meal is sent for analysis only if you ask for AI advice on that meal and have agreed to send photos.
How do I back up my data?
Settings → Export backup. A zip with the database and photos is generated; keep it wherever you like and restore it on another device. The app reminds you after 30 days without a backup.
Does it work for gaining muscle?
Yes. Every body part and every goal has its own direction, gain or lose, and charts and goals are evaluated accordingly.
Which languages?
English, French and Spanish, switchable at any time.
What is the AI meal analysis?
An optional, paid feature: a calorie estimate and a few suggestions for a meal you logged, written by an AI model (Claude, by Anthropic). The app sends that meal only when you ask, after showing you what is sent; without it, the meal journal stays on the device like everything else. It is general guidance, not medical advice. Details in the privacy policy.